Engine stalls when giving it Gas?

[BudL1te]

Hello,

I have a 4 cyl Mercruiser 153 CID with 2 single barrel Carter RBS Carbs (1969)

I cleaned the carbs out they were pretty dirty. I can see fuel spray in when I press on the throttle.

It starts and idles fine. If I work the throttle back and forth quickly I can get the RPM's up but that takes a bit.

I am assuming that I don't have the mixture set right but I don't know.

Any ideas?

 

[thumpar]

Try a rebuild. They are cheap to get. It sounds like the accelerator pump is not working it's best.

 

[BudL1te]

The rebuld kits are about 50 each X 2 Ugh.

The accelerator pumps are working great though. Couldn't get any more gas to come out the jet.

 

[flipbro]

Change filters and rebuild carb.. Check timming. Boats arnt cheap lol ..I used to have money now I have a boat...

 

[superbenk]

I'd definitely be checking the timing. Make sure your advance weights are free in the distributor.